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Built 2026-10-19 (19 October 2026)

Presa Morelos Threshold Days by Year (MXN00002037)

16 fixed thresholds counted per year at Presa Morelos (MXN00002037): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Presa Morelos Thresholds

  • Presa Morelos: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1990 with 258.
  • Presa Morelos: days with a maximum temperature at or above 35 C (95 F) in 41 years, most in 1990 with 186.
  • Presa Morelos: days with a maximum temperature at or above 40 C (104 F) in 41 years, most in 1991 with 144.
  • Presa Morelos: days with a maximum temperature at or above 90 F (32.2 C) in 41 years, most in 1990 with 208.
  • 16 fixed thresholds have at least one qualifying day at Presa Morelos.
41 years with a qualifying day
Days at or above 30 C (86 F) per year at Presa Morelos Days per year at Presa Morelos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 258 in 1990. 01002003001961: 1831962: 2061963: 2061964: 1991965: 1991966: 2241967: 1991969: 1901971: 1821972: 2071973: 1341974: 1931975: 1721976: 1831977: 1891978: 1831979: 1791980: 1551981: 2031982: 1831983: 1651984: 1731985: 1791986: 1651989: 2421990: 2581991: 2461999: 2062000: 2042001: 2192002: 1852003: 2002004: 2102005: 2002006: 2082007: 2192008: 2102009: 2102010: 1882011: 2062012: 215196119661973197819831990200220072012
Days per year at Presa Morelos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 258 in 1990.
Days at or above 30 C (86 F) per year at Presa Morelos
YearDaysDecade average
1961183200.8
1962206200.8
1963206200.8
1964199200.8
1965199200.8
1966224200.8
1967199200.8
1969190200.8
1971182180.2
1972207180.2
1973134180.2
1974193180.2
1975172180.2
1976183180.2
1977189180.2
1978183180.2
1979179180.2
1980155183.1
1981203183.1
1982183183.1
1983165183.1
1984173183.1
1985179183.1
1986165183.1
1989242183.1
1990258236.7
1991246236.7
1999206236.7
2000204206.5
2001219206.5
2002185206.5
2003200206.5
2004210206.5
2005200206.5
2006208206.5
2007219206.5
2008210206.5
2009210206.5
2010188203
2011206203
2012215203
First to last qualifying date each year at Presa Morelos For each year, a bar from the first to the last day at Presa Morelos meeting 30 C (86 F). 1961: 9 March 1961 to 27 October 19611962: 8 January 1962 to 12 November 19621963: 3 February 1963 to 13 November 19631964: 17 March 1964 to 7 November 19641965: 22 February 1965 to 10 November 19651966: 7 March 1966 to 16 November 19661967: 23 February 1967 to 18 November 19671969: 18 March 1969 to 3 November 19691971: 18 January 1971 to 12 November 19711972: 27 February 1972 to 17 October 19721973: 6 April 1973 to 2 December 19731974: 14 March 1974 to 15 November 19741975: 28 February 1975 to 7 November 19751976: 18 March 1976 to 9 November 19761977: 16 February 1977 to 16 November 19771978: 17 March 1978 to 8 November 19781979: 8 March 1979 to 28 October 19791980: 10 April 1980 to 11 November 19801981: 13 March 1981 to 16 November 19811982: 15 February 1982 to 25 October 19821983: 30 March 1983 to 29 October 19831984: 20 March 1984 to 5 November 19841985: 1 April 1985 to 7 November 19851986: 24 February 1986 to 4 November 19861989: 23 February 1989 to 23 November 19891990: 25 February 1990 to 8 December 19901991: 5 February 1991 to 14 November 19911999: 28 February 1999 to 16 November 19992000: 12 March 2000 to 22 October 20002001: 19 March 2001 to 18 November 20012002: 23 February 2002 to 21 November 20022003: 31 January 2003 to 29 October 20032004: 8 March 2004 to 16 October 20042005: 12 March 2005 to 25 November 20052006: 25 March 2006 to 23 November 20062007: 8 March 2007 to 19 November 20072008: 12 March 2008 to 21 November 20082009: 23 February 2009 to 11 November 20092010: 17 March 2010 to 8 December 20102011: 17 January 2011 to 1 November 20112012: 5 March 2012 to 5 December 20121961196719751981198920022008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Presa Morelos meeting 30 C (86 F).
First to last qualifying date each year at Presa Morelos
YearFirst dateLast date
19611961-03-091961-10-27
19621962-01-081962-11-12
19631963-02-031963-11-13
19641964-03-171964-11-07
19651965-02-221965-11-10
19661966-03-071966-11-16
19671967-02-231967-11-18
19691969-03-181969-11-03
19711971-01-181971-11-12
19721972-02-271972-10-17
19731973-04-061973-12-02
19741974-03-141974-11-15
19751975-02-281975-11-07
19761976-03-181976-11-09
19771977-02-161977-11-16
19781978-03-171978-11-08
19791979-03-081979-10-28
19801980-04-101980-11-11
19811981-03-131981-11-16
19821982-02-151982-10-25
19831983-03-301983-10-29
19841984-03-201984-11-05
19851985-04-011985-11-07
19861986-02-241986-11-04
19891989-02-231989-11-23
19901990-02-251990-12-08
19911991-02-051991-11-14
19991999-02-281999-11-16
20002000-03-122000-10-22
20012001-03-192001-11-18
20022002-02-232002-11-21
20032003-01-312003-10-29
20042004-03-082004-10-16
20052005-03-122005-11-25
20062006-03-252006-11-23
20072007-03-082007-11-19
20082008-03-122008-11-21
20092009-02-232009-11-11
20102010-03-172010-12-08
20112011-01-172011-11-01
20122012-03-052012-12-05

Every Fixed Threshold

Fixed thresholds at Presa Morelos
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days412581990215
35 C (95 F): Days411861990156
40 C (104 F): Days41144199187
45 C (113 F): Days3938200013
50 C (122 F): Days1219902
90 F (32.2 C): Days412081990180
100 F (37.8 C): Days411721991128
110 F (43.3 C): Days4054198918
120 F (48.9 C): Days2919902
0 C (32 F): Frost days (min251719902
20 C (68 F): Tropical nights (min391432001123
25 C (77 F): Days with min3982200854
10 mm (0.39 in): Days with 10 mm or more rain29519761
25 mm (0.98 in): Days with 25 mm or more rain12320103
50 mm (1.97 in): Days with 50 mm or more rain2119631
100 mm (3.94 in): Days with 100 mm or more rain1119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Presa Morelos threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).